resolve #1213 and #1193

[EdenWuyifan]

Does this PR close any open issues?

Closes #1213
Closes #1193.

Give a longer description of what this PR addresses and why it's needed

Resolve #1213 and #1193.

• Add an optionalProperty for metadata tidy CSV download.
• Add a little footnote on the bottom right corner of the landing page showing ReVISiT version.

Provide pictures/videos of the behavior before and after these changes (optional)

#1193 - add an optionalProperties that covers keys under metadata:

#1213 - add a small version tag on the landing page:

Are there any additional TODOs before this PR is ready to go?

TODOs:

• Update relevant documentation
• ...

[github-actions]

🪓 PR closed, deleted preview.

[JackWilb]

@EdenWuyifan
The version tag looks great, but please use the maximum revisit version from the studies that are referenced from the global.json.
Please update the metaData to output to a row instead of a column. You can follow the participantTags as an example of how to do this.

Thanks!

[EdenWuyifan]

Hi @JackWilb, thanks for the reviews -- please take a look at the newest commit.

[alexsb]

We could bump up the font size a bit; and maybe even move it into the header toolbar?

[EdenWuyifan]

We could bump up the font size a bit; and maybe even move it into the header toolbar?

Hi @alexsb, done :)
Now the verson tag is slightly bigger and all the logics are in AppHeader.

[JackWilb]

Looks great! Thanks @EdenWuyifan